WO2003068670A3 - Microfluidic valve and system therefor - Google Patents

Microfluidic valve and system therefor Download PDF

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Publication number
WO2003068670A3
WO2003068670A3 PCT/US2003/003154 US0303154W WO03068670A3 WO 2003068670 A3 WO2003068670 A3 WO 2003068670A3 US 0303154 W US0303154 W US 0303154W WO 03068670 A3 WO03068670 A3 WO 03068670A3
Authority
WO
WIPO (PCT)
Prior art keywords
valve
fluid
aperture
flow
relatively
Prior art date
Application number
PCT/US2003/003154
Other languages
French (fr)
Other versions
WO2003068670A2 (en
Inventor
Steve T Cho
Original Assignee
Abbott Lab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abbott Lab filed Critical Abbott Lab
Priority to DE2003613435 priority Critical patent/DE60313435T2/en
Priority to EP03707678A priority patent/EP1476393B1/en
Priority to CA 2475805 priority patent/CA2475805A1/en
Priority to AU2003208953A priority patent/AU2003208953B2/en
Priority to JP2003567814A priority patent/JP4199127B2/en
Publication of WO2003068670A2 publication Critical patent/WO2003068670A2/en
Publication of WO2003068670A3 publication Critical patent/WO2003068670A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15C—FLUID-CIRCUIT ELEMENTS PREDOMINANTLY USED FOR COMPUTING OR CONTROL PURPOSES
    • F15C5/00—Manufacture of fluid circuit elements; Manufacture of assemblages of such elements integrated circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0003—Constructional types of microvalves; Details of the cutting-off member
    • F16K99/0015—Diaphragm or membrane valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0034—Operating means specially adapted for microvalves
    • F16K99/0042—Electric operating means therefor
    • F16K99/0046—Electric operating means therefor using magnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0034—Operating means specially adapted for microvalves
    • F16K99/0042—Electric operating means therefor
    • F16K99/0048—Electric operating means therefor using piezoelectric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K99/0001—Microvalves
    • F16K99/0034—Operating means specially adapted for microvalves
    • F16K99/0042—Electric operating means therefor
    • F16K99/0051—Electric operating means therefor using electrostatic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K99/00—Subject matter not provided for in other groups of this subclass
    • F16K2099/0082—Microvalves adapted for a particular use
    • F16K2099/0086—Medical applications
    • F16K2099/0088—Implanted devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/218—Means to regulate or vary operation of device
    • Y10T137/2191—By non-fluid energy field affecting input [e.g., transducer]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/218—Means to regulate or vary operation of device
    • Y10T137/2202—By movable element
    • Y10T137/2213—Electrically-actuated element [e.g., electro-mechanical transducer]

Abstract

A valve (105) controls fluid flow in a microfluidic system (100). The valve (105) has an input port adapted to receive fluid exerting a predetermined level of pressure on the valve (105) and an output port. The valve (105) has a variable sized aperture disposed perpendicular to the flow of the fluid (119). The aperture varies in size between a relatively small aperture (137) and a relatively large aperture (151). The small aperture (137) prevents the flow of the fluid (119) through the valve (105) responsive to a relatively high level of capillary forces between the fluid (119) and the valve (105) in the small aperture (137). The large aperture (151) permits the flow of the fluid (119) through the valve (105) responsive to a relatively low level of capillary forces between the fluid (119) and the valve (105) in the large aperture (151).
PCT/US2003/003154 2002-02-14 2003-02-03 Microfluidic valve and system therefor WO2003068670A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2003613435 DE60313435T2 (en) 2002-02-14 2003-02-03 VALVE FOR USE IN MICROFLUIDES STRUCTURES
EP03707678A EP1476393B1 (en) 2002-02-14 2003-02-03 Microfluidic valve and system therefor
CA 2475805 CA2475805A1 (en) 2002-02-14 2003-02-03 Microfluidic valve and system therefor
AU2003208953A AU2003208953B2 (en) 2002-02-14 2003-02-03 Microfluidic valve and system therefor
JP2003567814A JP4199127B2 (en) 2002-02-14 2003-02-03 Microfluidic valve and system therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/075,416 2002-02-14
US10/075,416 US6561224B1 (en) 2002-02-14 2002-02-14 Microfluidic valve and system therefor

Publications (2)

Publication Number Publication Date
WO2003068670A2 WO2003068670A2 (en) 2003-08-21
WO2003068670A3 true WO2003068670A3 (en) 2004-07-01

Family

ID=22125583

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/003154 WO2003068670A2 (en) 2002-02-14 2003-02-03 Microfluidic valve and system therefor

Country Status (9)

Country Link
US (1) US6561224B1 (en)
EP (1) EP1476393B1 (en)
JP (1) JP4199127B2 (en)
AT (1) ATE360597T1 (en)
AU (1) AU2003208953B2 (en)
CA (1) CA2475805A1 (en)
DE (1) DE60313435T2 (en)
ES (1) ES2285102T3 (en)
WO (1) WO2003068670A2 (en)

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Also Published As

Publication number Publication date
DE60313435T2 (en) 2008-01-10
ES2285102T3 (en) 2007-11-16
JP2005525514A (en) 2005-08-25
DE60313435D1 (en) 2007-06-06
US6561224B1 (en) 2003-05-13
CA2475805A1 (en) 2003-08-21
WO2003068670A2 (en) 2003-08-21
AU2003208953B2 (en) 2008-12-11
EP1476393B1 (en) 2007-04-25
JP4199127B2 (en) 2008-12-17
EP1476393A2 (en) 2004-11-17
ATE360597T1 (en) 2007-05-15
AU2003208953A1 (en) 2003-09-04

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